期刊
MACROMOLECULAR MATERIALS AND ENGINEERING
卷 306, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.202100095
关键词
biaxial melt-drawing; blend; nanoporous membrane; normal molecular weight polyethylene; ultra-high molecular weight polyethylene
资金
- JSPS KAKENHI [20H00386]
- Grants-in-Aid for Scientific Research [20H00386] Funding Source: KAKEN
The biaxial melt-drawing and subsequent solid-drawing of blend films composed of ultra-high molecular weight polyethylene and normal molecular weight polyethylene resulted in a unique network structure and nanoporous morphology. The high gas permeability coefficients of the nanoporous membranes make them suitable for various separation applications, while maintaining good tensile strength.
Biaxial melt-drawing of blend films composed of ultra-high molecular weight polyethylene and normal molecular weight polyethylene produced a unique network structure consisting of 30-nm thick homogeneous folded chain crystals. Subsequent biaxial solid-drawing produced a nanoporous structure covering a large area of the membrane surface (120 mm x 120 mm). Effects of preparation parameters, including annealing and subsequent solid-drawing, on resultant nanoporous morphology are also testified to achieve the desirable membrane. The higher gas permeability coefficients of the nanoporous membranes indicate that these nanopores are interconnected along the thickness direction. Despite such excellent porosity, the tensile strength reached 30 MPa, which is similar to that for the initial non-porous film. Consistence of membrane porousness and robustness is highly desirable for various separation applications, including filtration, water purification, dialysis, and lithium-ion batteries.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据